2026-10-15T09:43:00Z https://gdex.ucar.edu/oai

oai:edu.ucar.gdex:d119003

ERA-40 Monthly Means of Isentropic Level Analysis Data ECMWF > European Centre for Medium-Range Weather Forecasts NSF National Center for Atmospheric Research Published: 2004-08-06 Valid: 1957-09-01T00:00+00:00 to 2002-08-31T18:00+00:00 climatologyMeteorologyAtmosphere The monthly means of ECMWF ERA-40 reanalysis isentropic level analysis data are in this dataset. Dataset DOI:10.5065/84RB-5G30 english oai:edu.ucar.gdex:627.0 ECMWF's Climate Reanalysis web site [https://www.ecmwf.int/en/research/climate-reanalysis] Downloading/Accessing data from this dataset implies acceptance of\n ECMWF\'s Terms of Use [https://apps.ecmwf.int/datasets/data/era40-daily/licence/]\n